feat: add ES Module support

.github/workflows/build.yml

@@ -42,6 +42,12 @@ jobs:
       - name: Run server test
         run: npm run test:server
 
+      - name: Run ES modules tests
+        run: npm run test:module
+
+      - name: Run server test
+        run: npm run test:server
+
       - name: Run client test
         uses: GabrielBB/xvfb-action@v1
         with:

index.mjs

@@ -0,0 +1,3 @@
+import HTMLDOMParser from './index.js';
+
+export default HTMLDOMParser;

package.json

@@ -4,6 +4,11 @@
   "description": "HTML to DOM parser.",
   "author": "Mark <mark@remarkablemark.org>",
   "main": "index.js",
+  "module": "index.mjs",
+  "exports": {
+    "import": "./index.mjs",
+    "require": "./index.js"
+  },
   "scripts": {
     "build": "rollup --config",
     "clean": "rm -rf dist",
@@ -18,6 +23,7 @@
     "test:client": "npm run test:client:watch -- --single-run",
     "test:client:build": "webpack --config webpack.test.config.js",
     "test:client:watch": "npm run test:client:build && karma start",
+    "test:module": "node --experimental-modules test/module/index.mjs",
     "test:server": "nyc mocha test/server"
   },
   "repository": {
@@ -76,6 +82,8 @@
   "files": [
     "/dist",
     "/index.d.ts",
+    "/index.js",
+    "/index.mjs",
     "/lib"
   ],
   "browser": {

test/module/index.mjs

@@ -0,0 +1,4 @@
+import assert from 'assert';
+import HTMLDOMParser from '../../index.mjs';
+
+assert.strictEqual(typeof HTMLDOMParser, 'function');